Fundamentals of Go | Learn GoLang Programming Language

Explore how to create and manipulate arrays and slices in Go, including length, indexing, two-dimensional arrays, and using pointers to avoid copying.

Explore slices in Go and their relation to arrays, including creation, length, capacity, and how they act as references to underlying arrays.

Explore how to create and manipulate slices in Go using the make function, append, and slicing; understand length, capacity, underlying array behavior, and reference semantics for memory efficiency.

Understand how Go maps associate string keys with int values, created by literals or the make function, manipulated with add and delete, and checked with the ok idiom and len.

Explore how to declare and initialize structs in Go, define fields, and use slices and anonymous structs, while understanding exported versus unexported fields and memory behavior.

Discover composition in Go by embedding structs to share code and data, unlike inheritance. See a vehicle example with embedded fields and how access works.

Explore Go's control flow with if, if else, and else if, using relational and logical operators to compare values, chain conditions, and handle errors with if err != nil.

Explore switch statements in Go as a concise way to express conditionals, using the first matching case, multiple conditions separated by commas, a default, and implicit break with fall-through.

Explore the Golang for loop syntax with initialization, condition, and post statements; compare with a while-style loop, and demonstrate infinite loops, break, and continue through practical examples like summing numbers.

Explore the for range loop in Go, iterating slices and maps, printing indices and values, using pointers and short variable declarations, and handling unused variables with underscores.

Master the Go defer keyword, which defers code until a function returns and executes in reverse order for cleanups, as shown with file operations and prints.

Explore how panic works in Go, when to use panic vs errors, and how defer and recover control flow across functions during unrecoverable errors.

Learn how the recover function regains control from a panicking Go program using a deferred call. See panic handling with defer, recovered from messages, and avoiding runtime errors.

Explore functions in Go, covering func declarations, parameters and return types, named returns, and using the underscore to discard values, with examples like calculating amount and equilateral triangle area.

Explore first-class functions in Go by assigning anonymous functions to variables, passing functions as arguments, and returning functions, then define custom function types and higher-order patterns.

Learn how interfaces in Go define a set of method signatures, and how types automatically implement an interface, as shown with circle and rectangle shapes computing areas.

Create a simple hello world http server in go by wiring a handler. Run the local server and route requests to / to see the hello output.